<template>
  <h2>当前求和为:{{ sum }}</h2>
  <button @click="sum++">点我＋1</button>
  <h2>个人信息</h2>
  <h2>姓名:{{ name }}</h2>
  <h2>年龄:{{ age }}</h2>
  <h2>薪资:{{ job.j1.salary }}k</h2>
  <h2>车: {{ person.car }}</h2>
  <button @click="name += '~'">修改姓名</button>
  <button @click="age++">修改年龄</button>
  <button @click="job.j1.salary++">涨薪</button>
  <br />
  <br />
  <button @click="showRawPerson">输出最原始的person</button>
  <button @click="addCar">给人添加一台车</button>
  <button @click="person.car.name += '!'">换车名</button>
  <button @click="person.car.price++">换价格</button>
</template>

<script>
import { ref, reactive, toRefs, toRaw, markRaw } from 'vue'
export default {
  name: 'Demo',
  setup() {
    let sum = ref(0)
    let person = reactive({
      name: '张三',
      age: 18,
      job: {
        j1: {
          salary: 50
        }
      }
    })

    function showRawPerson() {
      const p = toRaw(person)
      console.log(p)
    }

    function addCar() {
      let car = { name: 'bmw', price: 50 }
      person.car = markRaw(car)
    }

    return {
      sum,
      person,
      showRawPerson,
      addCar,
      ...toRefs(person)
    }
  }
}
</script>
